[smartmontools-support] WD WD101EFBX drive has insane temperatures?

[Ed Trumbull]

Thank you
________________________________
From: Christian Franke <Christian.Franke at t-online.de>
Sent: Wednesday, August 17, 2022 12:34 PM
To: Ed Trumbull <EdT at as2inc.com>
Cc: smartmontools-support at listi.jpberlin.de <smartmontools-support at listi.jpberlin.de>
Subject: Re: [smartmontools-support] WD WD101EFBX drive has insane temperatures?

Ed Trumbull wrote:
> I have a WD 10TB drive connected to a megaraid controller housed on a
> Supermicro motherboard.
> The system is running the Proxmox VE version 7.2-7 kernel
> (root at kvm-00:~# uname -a
> Linux kvm-00 5.15.39-3-pve #2 SMP PVE 5.15.39-3 (Wed, 27 Jul 2022
> 13:45:39 +0200) x86_64 GNU/Linux)
>
> This drive has been reporting "peculiar" temperatures to the syslog:
>
> Aug 17 08:19:04 kvm-00 smartd[1401]: Device: /dev/bus/0
> [megaraid_disk_21] [SAT], state written to
> /var/lib/smartmontools/smartd.WDC_WD101EFBX_68B0AN0-VCJ2P3WP.ata.state
> Aug 17 08:25:03 kvm-00 smartd[1389]: Device: /dev/bus/0
> [megaraid_disk_21], type changed from 'megaraid,21' to 'sat+megaraid,21'
> Aug 17 08:25:03 kvm-00 smartd[1389]: Device: /dev/bus/0
> [megaraid_disk_21] [SAT], opened
> Aug 17 08:25:03 kvm-00 smartd[1389]: Device: /dev/bus/0
> [megaraid_disk_21] [SAT], WDC WD101EFBX-68B0AN0, S/N:VCJ2P3WP,
> WWN:5-000cca-0b0dd670d, FW:85.00A85, 10.0 TB
> Aug 17 08:25:03 kvm-00 smartd[1389]: Device: /dev/bus/0
> [megaraid_disk_21] [SAT], not found in smartd database.
> Aug 17 08:25:03 kvm-00 smartd[1389]: Device: /dev/bus/0
> [megaraid_disk_21] [SAT], not capable of SMART Health Status check
> Aug 17 08:25:03 kvm-00 smartd[1389]: Device: /dev/bus/0
> [megaraid_disk_21] [SAT], no ATA CHECK POWER STATUS support, ignoring
> -n Directive
> Aug 17 08:25:03 kvm-00 smartd[1389]: Device: /dev/bus/0
> [megaraid_disk_21] [SAT], is SMART capable. Adding to "monitor" list.
> Aug 17 08:25:03 kvm-00 smartd[1389]: Device: /dev/bus/0
> [megaraid_disk_21] [SAT], state read from
> /var/lib/smartmontools/smartd.WDC_WD101EFBX_68B0AN0-VCJ2P3WP.ata.state
> Aug 17 08:25:04 kvm-00 smartd[1389]: Device: /dev/bus/0
> [megaraid_disk_21] [SAT], state written to
> /var/lib/smartmontools/smartd.WDC_WD101EFBX_68B0AN0-VCJ2P3WP.ata.state
> Aug 17 08:55:04 kvm-00 smartd[1389]: Device: /dev/bus/0
> [megaraid_disk_21] [SAT], SMART Usage Attribute: 194
> Temperature_Celsius changed from 240 to 250
> Aug 17 09:25:04 kvm-00 smartd[1389]: Device: /dev/bus/0
> [megaraid_disk_21] [SAT], SMART Usage Attribute: 194
> Temperature_Celsius changed from 250 to 232

This is normal, please see:
https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.smartmontools.org%2Fwiki%2FFAQ%23Whyismydisktemperaturereportedbysmartdas150Celsius&data=05%7C01%7CEdT%40as2inc.com%7C666ddd6038654d73c8ae08da806e65c2%7C5287874e6a4b4ad48e3faf2630161633%7C0%7C0%7C637963509067598083%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000%7C%7C%7C&sdata=kyQToOsbypWsEz8d16scYV%2BcxX6z4FZNdm73IOBEAYc%3D&reserved=0


> Aug 17 09:55:04 kvm-00 smartd[1389]: Device: /dev/bus/0
> [megaraid_disk_21] [SAT], SMART Usage Attribute: 194
> Temperature_Celsius changed from 232 to 4
> Aug 17 10:25:04 kvm-00 smartd[1389]: Device: /dev/bus/0
> [megaraid_disk_21] [SAT], SMART Usage Attribute: 194
> Temperature_Celsius changed from 4 to 224
> Aug 17 10:55:04 kvm-00 smartd[1389]: Device: /dev/bus/0
> [megaraid_disk_21] [SAT], SMART Usage Attribute: 194
> Temperature_Celsius changed from 224 to 4
>

These flipping values look strange. Add '-r 194' to smartd.conf to see
corresponding raw values (usually temperature in celsius) also.


Regards,
Christian

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